From: Li Zefan <lizf@cn.fujitsu.com>
Date: Tue, 8 Dec 2009 03:15:30 +0000 (+0800)
Subject: ftrace: Call trace_parser_clear() properly
X-Git-Tag: v2.6.33-rc1~52^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=313254a9400d388b46150c0f355e216418a2f598;p=pandora-kernel.git

ftrace: Call trace_parser_clear() properly

I found a weird behavior:

  # echo 'fuse:*' > set_ftrace_filter
  bash: echo: write error: Invalid argument
  # cat set_ftrace_filter
  fuse_dev_fasync
  fuse_dev_poll
  fuse_copy_do

We should call trace_parser_clear() no matter ftrace_process_regex()
returns 0 or -errno, otherwise we will actually take the unaccepted
records from ftrace_regex_release().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <4B1DC4D2.3000406@cn.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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